发明名称 Method and apparatus for beneficiating soils during vacuum excavation
摘要 An apparatus for soil excavation having a vacuum hose, a vacuum holding tank and at least one air lance and/or water jet, in which a soil beneficiating agent is introduced into the soil during one or more of the steps of the vacuum excavation process.
申请公布号 US7234252(B2) 申请公布日期 2007.06.26
申请号 US20040972500 申请日期 2004.10.25
申请人 JARNECKE DENNIS R;TODRES HYMAN AARON 发明人 JARNECKE DENNIS R.;TODRES HYMAN AARON
分类号 E02F3/88 主分类号 E02F3/88
代理机构 代理人
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